AS3910-BQFP AMSCO [austriamicrosystems AG], AS3910-BQFP Datasheet - Page 35

• Manufacturer Part Number: AS3910-BQFP
• Description: 13.56 MHz RFID Reader IC, ISO-14443 A/B
• Manufacturer: AMSCO [austriamicrosystems AG]

AS3910
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
8.11.8 Regulator Registers
Table 33. Regulators Display Register
Note: At power up and after Set Default command, regulated voltage is set to maximum 3.4V.
Table 34. Regulated Voltage Definition Register
Note: Default setting is set at power up and after Set Default command.
Table 35. Definition
www.austriamicrosystems.com/HF_RFID_Reader/AS3910
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
rege_3
reg_3
1
1
1
1
1
1
1
1
0
0
rege _2
rege _1
rege _0
rege_3
Name
reg_s
Address # 16: Regulated Voltage Definition Register
Name
reg_3
reg_2
reg_1
reg_0
Address # 15: Regulators Display Register
Def.
0
0
0
0
0
MSB
LSB
Not used
0 → regulated voltages are defined by result of
Adjust regulators command
1 → regulated voltages are defined by rege_x bits
written in this register
MSB
LSB
Not used
rege_2
reg_2
1
1
1
1
0
0
0
0
1
1
Function
Function
rege_1
reg_1
Revision 2.3
1
1
0
0
1
1
0
0
1
1
This register displays actual regulated voltage when
regulator is operating.
In Power-down mode, its content is forced to 00. See
Table 35
Defines mode of regulator voltage setting
External definition of regulated voltage.
See
for definition.
rege_0
reg_0
Table 35
1
0
1
0
1
0
1
0
1
0
for definition.
Comments
type: R
Comments
type: RW
Regulated voltage
[V]
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
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